SAM9N12 Datasheet, PDF (1096/1137 Pages) ATMEL Corporation – The ARM926EJ-S based SAM9CN12 features the frequently requested combination of user...

Table 48-28. SMC Write NCS Controlled (WRITE_MODE = 0)
Min
Symbol Parameter
1.8V Supply
3.3V Supply
SMC₂₅
SMC₂₆
NWE low before NCS high
NCS High to Data Out, NBS0/A0, NBS1,
NBS2/A1, NBS3, A2 - A25, change
(ncs wr setup - nwe setup + ncs
pulse)* t_CPMCK - 3.9
ncs wr hold * t_CPMCK - 6.1
(ncs wr setup - nwe setup +
ncs pulse)* t_CPMCK - 3.9
ncs wr hold * t_CPMCK - 5.2
SMC₂₇
NCS High to NWE Inactive
(ncs wr hold - nwe hold)* t_CPMCK -
4.8
(ncs wr hold - nwe hold)*
t_CPMCK - 4.4
Units
ns
ns
ns
Figure 48-2. SMC Timings - NCS Controlled Read and Write
A0/A1/NBS[3:0]
/A2-A25
NRD
NCS
D0 - D15
NWE
SMC12
SMC13
SMC12
SMC13
SMC14
SMC8
SMC9
SMC14
SMC10 SMC11
NCS Controlled READ
with NO HOLD
NCS Controlled READ
with HOLD
SMC24
SMC26
SMC23
SMC22
SMC26
SMC25
SMC27
NCS Controlled WRITE
1096 SAM9N12/SAM9CN11/SAM9CN12
11063G–ATARM–09-Oct-12